Historical Visitor Statistics

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As a national user facility, ARM is required to report facility use for actual visitors and for active user research computer and Archive accounts and only unique scientific users will be counted. A scientific user is defined as a member of the scientific community and infrastructure who is using ARM Facilities or data to perform peer-reviewed science and research. For the ARM Infrastructure, this includes the scientists and engineers who are involved in the development of synthesis products, value-added products, instrument performance analysis, and uncertainty quantification. Unique scientific users are defined as a single use of an ARM Facility’s on-site assets, off-site services, or data services during the defined reporting period.

Beginning in fiscal year 2013, the approach used to count scientific users for the ARM Climate Research Facility was revised to align with other DOE Office of Science user facilities. Please contact Jimmy Voyles if there are any questions related to the information presented here about the facility statistics.

Table 1. Facility Users by Year and Quarter

Fiscal Year

On Site

Remote

Data

Total

2017 Q3

217

185

703

1,105

2017 Q2

124

248

805

1,177

2017 Q1

133

131

816

1,080

2016 Q4

100

203

758

1,061

2016 Q3

99

402

665

1,166

2016 Q2

81

411

679

1,171

2016 Q1

79

407

686

1,172

2015 Q4

104

423

673

1,200

2015 Q3

112

417

651

1,180

2015 Q2

113

423

647

1,183

2015 Q1

147

394

599

1,140

2014 Q4

160

454

682

1,296

2014 Q3

186

530

500

1,216

2014 Q2

147

394

599

1,140

2014 Q1

151

489

529

1,169

2013 Q4

145

457

381

983

2013 Q3

141

451

303

895

2013 Q2

117

433

271

821

2013 Q1

99

121

189

409

Table 2. Facility Users by Year and Site*

Table 2 follows reporting guidance provided in FY2009 for counting ARM users. At that time, the new computations were applied to previous quarterly reports and user statistics were recalculated to count only scientific users.

*Scientific user numbers appear first; total number of users appear in the parentheses.

Fiscal Year

ARM Aerial
Facility

ARM Mobile
Facility

Data Mgt
Facility

North Slope
of Alaska

Southern
Great Plains

Tropical
Western
Pacific

Archive

Totals

2012

4 (4)

125 (201)

54 (125)

55 (101)

120 (240)

38 (52)

837 (946)

1,233 (1,669)

2011

+ (+)

175 (234)

48 (115)

41 (81)

149 (327)

34 (62)

770 (845)

1,217 (1,664)

2010

+ (+)

32 (52)

27 (83)

33 (71)

60 (123)

22 (43)

744 (813)

918 (1,185)

2009

+ (+)

20 (41)

27 (76)

30 (69)

62 (151)

40 (53)

744 (819)

923 (1,209)

2008

+ (+)

254 (273)

28 (56)

56 (101)

55 (108)

25 (41)

588 (651)

1,006 (1,230)

2007

+ (+)

657 (707)

25 (45)

28 (60)

89 (198)

29 (39)

570 (642)

1,398 (1,691)

2006

+ (+)

20 (53)

24 (41)

31 (67)

45 (170)

32 (59)

487 (554)

639 (944)

2005

+ (+)

50 (79)

18 (24)

43 (136)

109 (209)

42 (95)

448 (523)

710 (1,066)

+ Data for the ARM Aerial Facility were not collected during this time.

Table 3. Visitor Days by Year and Site

Every visitor to the ARM Climate Research Facility must submit a request to visit. From that request, the following statistics in Table 3 have been summarized and the total number of visitors days are recorded.